Synchronous belt transmission device

Abstract

The utility model provides a synchronous belt transmission device. The synchronous belt transmission device comprises a tooth-shaped synchronous belt, the clamp clamps belt teeth of the tooth-shaped synchronous belt in the width direction of the tooth-shaped synchronous belt, a sleeve used for being connected with a load component is arranged on the side, away from the tooth-shaped synchronous belt, of the clamp, the sleeve is used for being arranged on a connecting shaft of the load component in a sleeving mode, and the tooth-shaped synchronous belt drives the clamp to move so that the sleeve can drive the load component to move synchronously; the edge of the tooth-shaped belt wheel is provided with a gear tooth groove and an avoiding groove for avoiding the clamp in the circumferential direction of the tooth-shaped belt wheel. According to the synchronous belt transmission device, the technical problem that the load capacity of a synchronous belt is low in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission machinery, in particular to a synchronous belt transmission device. Background Art

[0002] Mechanical transmission methods mainly include chain transmission and toothed synchronous belt transmission. Chain transmission is a transmission method that transmits the motion and power of a driving sprocket with a special tooth shape to a driven sprocket with a special tooth shape through a chain. It has large transmission power, strong overload capacity, and small transmission size under the same working conditions. However, due to the structural characteristics of the chain and sprocket, the pitch line of the chain is divided into small arcs and small straight lines, resulting in a polygonal effect, causing the chain to shake, resulting in high transmission noise, and its use environment is limited.

[0003] Synchronous belt drive is a meshing drive that does not require lubrication during operation, is simple to maintain, and has low cost. It can also work in harsh environments such as moisture or corrosive environments. The most important thing is that it has low noise, making it the preferred transmission method in work environments that require noise. However, in the lifting device that carries some materials, although the synchronous belt drive has low noise, it sometimes causes elastic sliding or slipping. The lifting device has a low carrying capacity for transporting materials upward and cannot meet the load required for the work.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a synchronous belt transmission device to solve the technical problem of low load capacity of the synchronous belt in the related art.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a synchronous belt transmission device is provided, including: a toothed synchronous belt; a clamp, the clamp clamps the belt teeth of the toothed synchronous belt along the width direction of the toothed synchronous belt, a sleeve for connecting a load component is provided on the side of the clamp away from the toothed synchronous belt, the sleeve is used to be sleeved on the connecting shaft of the load component, the toothed synchronous belt drives the clamp to move, so that the sleeve drives the load component to move synchronously; a toothed pulley, the edge of the toothed pulley is provided with a wheel tooth groove and an avoidance groove for avoiding the clamp along its circumference.

[0007] Furthermore, the clamp includes a connecting arm and a clamping component, the clamping component is connected with teeth, one end of the connecting arm is rotatably connected to the clamping component, and the other end of the connecting arm is rotatably connected to the sleeve.

[0008] Furthermore, the clamping component includes an abutment portion and a clamping portion, which are detachably connected, the abutment portion is located on the side of the toothed synchronous belt away from the belt teeth, and the clamping portion matches the belt teeth so that the belt teeth are clamped between the abutment portion and the clamping portion. The clamp also includes two fasteners, which respectively pass through the abutment portion and the clamping portion so that the belt teeth are clamped on the clamping component.

[0009] Furthermore, there are two connecting arms and two clamping parts, the two connecting arms and the two clamping parts are respectively arranged axially symmetrically with the sleeve, and the number of belt teeth between the two clamping parts is the same as the number of gear tooth grooves between two adjacent avoidance grooves.

[0010] Further, the length of the connecting arm is greater than half of the distance between the two clamping parts.

[0011] Furthermore, there are multiple clamps, and the multiple clamps are arranged on the toothed synchronous belt along the circumferential direction, and the number of belt teeth between two adjacent clamps is the same.

[0012] Furthermore, the number of belt teeth is n1 times the number of gear tooth grooves, wherein n1 is an integer.

[0013] Furthermore, the number of the gear tooth grooves is n2 times the number of the belt teeth between the center positions of two adjacent sleeves, wherein n2 is an integer.

[0014] Furthermore, there are two sets of toothed synchronous belts which are symmetrically arranged on the left and right. The load component is connected between two symmetrically arranged sleeves. The two toothed synchronous belts rotate synchronously to drive the two sleeves to move, thereby transmitting the material on the load component.

[0015] Beneficial effects:

[0016] 1. The synchronous belt transmission device of the utility model has a clamp fixed on the synchronous belt, and a certain number of teeth are provided between two clamping parts of the clamp, thereby greatly improving the load capacity of the synchronous belt.

[0017] 2. In the synchronous belt transmission device of the utility model, the engaging portion matches with the belt teeth, so that the belt teeth are engaged between the abutting portion and the engaging portion, thereby improving the stability of the connection between the clamp and the synchronous belt.

[0018] 3. In the synchronous belt transmission device of the utility model, the number of belt teeth, the number of gear teeth and the number of belt teeth between two adjacent clamps are closely related, thereby improving the matching of the clamps and the synchronous belt and ensuring the reliable operation of the synchronous belt transmission device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a synchronous belt transmission device adopted in an embodiment of the utility model from one perspective;

[0020] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0021] Figure 3 It is a structural schematic diagram of a clamp of a synchronous belt transmission device used in an embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the synchronous belt transmission device adopted in the embodiment of the utility model from another perspective.

[0023] The above drawings include the following reference numerals:

[0024] 1. Toothed synchronous belt; 11. Belt teeth; 2. Clamp; 21. Sleeve; 22. Connecting arm; 23. Clamping component; 231. Abutment portion; 232. Engaging portion; 3. Toothed pulley; 31. Tooth groove; 32. Avoidance groove. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] According to an embodiment of the utility model, a synchronous belt transmission device is provided. Figures 1 to 4, including: a toothed synchronous belt 1; a clamp 2, the clamp 2 clamps the belt teeth 11 of the toothed synchronous belt 1 along the width direction of the toothed synchronous belt 1, and a sleeve 21 for connecting the load component is provided on the side of the clamp 2 away from the toothed synchronous belt 1, and the toothed synchronous belt 1 drives the clamp 2 to move, so that the sleeve 21 drives the load component to move synchronously; a toothed belt pulley 3, and the edge of the toothed belt pulley 3 is provided with a tooth groove 31 and an avoidance groove 32 for avoiding the clamp 2 along its circumference. The clamp 2 is arranged on the toothed synchronous belt 1 at intervals, and a sleeve 21 is arranged on the clamp 2, and the sleeve 21 is used to sleeve the connecting shaft of the load component, and the load component carries the material to be transmitted. The toothed belt pulley 3 drives the toothed synchronous belt 1 to rotate, and the clamp 2 connected to the toothed synchronous belt 1 also drives the load component to move synchronously, thereby transmitting the material on the load component. The belt teeth 11 mesh with the wheel tooth grooves 31, and the clamp 2 rotates to the toothed pulley 3. The avoidance groove 32 of the toothed pulley 3 is adapted to the clamp 2, thereby ensuring the normal use of the toothed synchronous belt 1 and the toothed pulley 3. The clamp 2 clamps the belt teeth 11 of the toothed synchronous belt 1 horizontally to increase the contact surface with the toothed synchronous belt 1, and then connects the load component with the sleeve 21, thereby increasing the load capacity of the synchronous belt. The sleeve 21 and the connecting shaft of the load component are connected in a nested manner to make loading and unloading and replacement of components between the two simple and labor-saving. The sleeve 21 is arranged along the width direction of the belt teeth 11 to increase the contact surface between the sleeve 21 and the connecting shaft sleeve to make the connection between the two more secure. The synchronous belt transmission device of this embodiment solves the technical problem of low load capacity of the synchronous belt in the related art.

[0027] See also Figures 1 to 3 In the synchronous belt transmission device of this embodiment, the clamp 2 includes a connecting arm 22 and a clamping part 23, the clamping part 23 is connected to the belt teeth 11, one end of the connecting arm 22 is rotatably connected to the clamping part 23, and the other end of the connecting arm 22 is rotatably connected to the sleeve 21. In this embodiment, the clamp 2 includes a connecting arm 22 and a clamping part 23, the two ends of the connecting arm 22 are respectively connected to the clamping part 23 and the sleeve 21, and the clamping part 23 and the sleeve 21 are rotatable relative to the connecting arm 22. The clamp 2 moves to the toothed belt wheel 3, and the meshing angle is adjusted around the toothed belt wheel 3 by the rotatable clamping part 23 to improve the meshing performance. Since the toothed belt wheels 3 at both ends of the transmission device are relatively long, when transmitting materials, the load component located between the two toothed belt wheels 3 will shake, and the connecting arm 22 is rotatably connected to the sleeve 21, so that the load component connected to the sleeve 21 can move smoothly with the movement of the clamp 2.

[0028] See also Figure 3In the synchronous belt transmission device of this embodiment, the clamping component 23 includes an abutting portion 231 and a clamping portion 232, the abutting portion 231 and the clamping portion 232 are detachably connected, the abutting portion 231 is located on the side of the toothed synchronous belt 1 away from the belt teeth 11, and the clamping portion 232 is consistent with the belt teeth 11, so that the belt teeth 11 are clamped between the abutting portion 231 and the clamping portion 232, and the clamp 2 also includes two fasteners, and the two fasteners pass through the abutting portion 231 and the clamping portion 232 respectively, so that the belt teeth 11 are clamped on the clamping component 23. The structure of the clamping portion 232 is consistent with the belt teeth 11, and the tooth shape of the belt teeth 11 is semicircular. Accordingly, the clamping portion 232 has a circular groove that is consistent with the semicircular shape. When the clamping portion 232 is connected to the belt teeth 11, the clamping portion 232 can surround the belt teeth 11. The abutting portion 231 abuts against the side of the toothed synchronous belt 1 away from the belt teeth 11, and the abutting portion 231 and the clamping portion 232 clamp the toothed synchronous belt 1 in the middle, and finally lock it with two fasteners. The abutting portion 231 and the clamping portion 232 are detachably connected to facilitate timely adjustment of the clamping force between the two, and to facilitate replacement and maintenance.

[0029] Specifically, the engaging portion 232 of the clamping member 23 matches the structure of the avoidance groove 32, so that the engaging portion 232 meshes with the avoidance groove 32. The clamping member 23 is arranged to be rotatable in order to match the pressure angle of the toothed belt wheel 3. When the clamp 2 is rotated onto the toothed belt wheel 3, if the pressure angle between the engaging portion 232 and the avoidance groove 32 does not match, it is easy to cause poor gear meshing, friction and wear, and reduce transmission efficiency. Therefore, the engaging portion 232 is adapted to the structure of the avoidance groove 32 to ensure that the pressure angle is equal during the meshing process and to ensure smooth meshing.

[0030] See also Figure 3 In the synchronous belt transmission device of this embodiment, there are two connecting arms 22 and two clamping parts 23. The two connecting arms 22 and the two clamping parts 23 are respectively arranged axially symmetrically with the sleeve 21, and the number of belt teeth 11 between the two clamping parts 23 is the same as the number of gear tooth grooves 31 between two adjacent avoidance grooves 32. In this embodiment, the clamp 2 includes two connecting arms 22 and two clamping parts 23. The two connecting arms 22 are connected to the sleeve 21, and the two connecting arms 22 and the two clamping parts 23 are symmetrically arranged with the sleeve 21. Correspondingly, the number of belt teeth 11 between the two clamping parts 23 is also the same as the number of gear tooth grooves 31 between two adjacent avoidance grooves 32 on the toothed belt wheel 3.

[0031] Specifically, in the synchronous belt transmission device of this embodiment, the number of belt teeth 11 between the two clamping components 23 is five. Together with the number of teeth clamped on both sides, one clamp 2 crosses and connects seven belt teeth, further increasing the belt load of the clamp 2.

[0032] See also Figure 3In the synchronous belt transmission device of this embodiment, the length of the connecting arm 22 is greater than half of the distance between the two clamping parts 23, so that the sleeve 21 can rotate on the connecting arm 22 to ensure the stability of the load part.

[0033] See also Figure 4 In the synchronous belt transmission device of this embodiment, there are multiple clamps 2, and the multiple clamps 2 are arranged on the toothed synchronous belt 1 along the circumferential direction, and the number of belt teeth 11 between two adjacent clamps 2 is the same. The clamps 2 are arranged around the toothed synchronous belt 1 and are evenly and spaced apart, which increases the number of load components and improves the transmission efficiency.

[0034] See also Figure 1 , Figure 2 and Figure 4 In the synchronous belt transmission device of this embodiment, the number of belt teeth 11 is n1 times the number of gear tooth grooves 31, where n1 is an integer. The number of belt teeth 11 is an integer multiple of the gear tooth grooves 31 to avoid impact and vibration during the meshing process of the gears, thereby ensuring the smooth transmission of power and torque.

[0035] See also Figure 4 In the synchronous belt transmission device of this embodiment, the number of the tooth grooves 31 is n2 times the number of the belt teeth 11 between the center positions of two adjacent sleeves 21, where n2 is an integer. The center position of the sleeve 21 corresponds to one tooth number, and the number of the tooth grooves 31 is an integer multiple of the number of teeth between the center positions of two adjacent sleeves 21, so as to limit the number of clamps 2 on the toothed belt wheel 3 and improve the matching of the module of the toothed belt wheel 3.

[0036] See also Figure 1 In the synchronous belt transmission device of this embodiment, the toothed synchronous belts 1 are two groups and are symmetrically arranged. The load component is connected between two symmetrically arranged sleeves 21. The two toothed synchronous belts 1 rotate synchronously, driving the two sleeves 21 to move, thereby transmitting the material on the load component. The load component is arranged between the two toothed synchronous belts 1 and connected by two sleeves 21 to improve the stability of the transmitted material.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0039] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0040] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0041] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A synchronous belt transmission device, characterized in that: include: Toothed synchronous belt (1); A clamp (2), the clamp (2) clamps the belt teeth (11) of the toothed synchronous belt (1) along the width direction of the toothed synchronous belt (1), a sleeve (21) for connecting a load component is provided on a side of the clamp (2) away from the toothed synchronous belt (1), the sleeve (21) is used to be sleeved on a connecting shaft of the load component, the toothed synchronous belt (1) drives the clamp (2) to move, so that the sleeve (21) drives the load component to move synchronously; A toothed belt wheel (3), wherein the edge of the toothed belt wheel (3) is provided with a tooth groove (31) and an avoidance groove (32) for avoiding the clamp (2) along its circumference.

2. The synchronous belt transmission device according to claim 1, characterized in that: The clamp (2) comprises a connecting arm (22) and a clamping component (23), wherein the clamping component (23) is connected to the belt teeth (11), one end of the connecting arm (22) is rotatably connected to the clamping component (23), and the other end of the connecting arm (22) is rotatably connected to the sleeve (21).

3. The synchronous belt transmission device according to claim 2, characterized in that: The clamping component (23) comprises an abutting portion (231) and a clamping portion (232), wherein the abutting portion (231) and the clamping portion (232) are detachably connected, wherein the abutting portion (231) is located at a side of the toothed synchronous belt (1) away from the belt teeth (11), and the clamping portion (232) matches the belt teeth (11) so that the belt teeth (11) are clamped between the abutting portion (231) and the clamping portion (232), and the clamp (2) further comprises two fasteners, wherein the two fasteners respectively penetrate the abutting portion (231) and the clamping portion (232) so that the belt teeth (11) are clamped on the clamping component (23).

4. The synchronous belt transmission device according to claim 3, characterized in that: There are two connecting arms (22) and two clamping parts (23). The two connecting arms (22) and the two clamping parts (23) are respectively arranged axially symmetrically with the sleeve (21). The number of belt teeth (11) between the two clamping parts (23) is the same as the number of gear tooth grooves (31) between two adjacent avoidance grooves (32).

5. The synchronous belt transmission device according to claim 4, characterized in that: The length of the connecting arm (22) is greater than half of the distance between the two clamping parts (23).

6. The synchronous belt transmission device according to claim 4, characterized in that: There are a plurality of the clamps (2), and the plurality of the clamps (2) are arranged circumferentially on the toothed synchronous belt (1), and the number of the belt teeth (11) between two adjacent clamps (2) is the same.

7. The synchronous belt transmission device according to claim 6, characterized in that: The number of the belt teeth (11) is n1 times the number of the gear tooth grooves (31), wherein n1 is an integer.

8. The synchronous belt transmission device according to claim 7, characterized in that: The number of the gear tooth grooves (31) is n2 times the number of the belt teeth (11) between the center positions of two adjacent sleeves (21), wherein n2 is an integer.

9. The synchronous belt transmission device according to claim 1, characterized in that: The toothed synchronous belts (1) are in two groups and are symmetrically arranged on the left and right. The load component is connected between the two symmetrically arranged sleeves (21). The two toothed synchronous belts (1) rotate synchronously to drive the two sleeves (21) to move, thereby transmitting the material on the load component.

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